Remove erroneous mutex lock in sylvan_wrapper

Also remove trailing whitespace

resources/3rdparty/sylvan/src/storm_wrapper.cpp

@@ -235,18 +235,10 @@ storm_rational_number_ptr storm_rational_number_mod(storm_rational_number_ptr a,
 }
 
 storm_rational_number_ptr storm_rational_number_min(storm_rational_number_ptr a, storm_rational_number_ptr b) {
-#ifndef RATIONAL_NUMBER_THREAD_SAFE
-    std::lock_guard<std::mutex> lock(rationalNumberMutex);
-#endif
-    
     return storm_rational_number_less_or_equal(a, b) ? storm_rational_number_clone(a) : storm_rational_number_clone(b);
 }
 
 storm_rational_number_ptr storm_rational_number_max(storm_rational_number_ptr a, storm_rational_number_ptr b) {
-#ifndef RATIONAL_NUMBER_THREAD_SAFE
-    std::lock_guard<std::mutex> lock(rationalNumberMutex);
-#endif
-    
     return storm_rational_number_less(a, b) ? storm_rational_number_clone(b) : storm_rational_number_clone(a);
 }
 
@@ -580,27 +572,11 @@ storm_rational_function_ptr storm_rational_function_mod(storm_rational_function_
 }
 
 storm_rational_function_ptr storm_rational_function_min(storm_rational_function_ptr a, storm_rational_function_ptr b) {
-#ifndef RATIONAL_FUNCTION_THREAD_SAFE
-    std::lock_guard<std::mutex> lock(rationalFunctionMutex);
-#endif
-    
-    if (storm_rational_function_less_or_equal(a, b)) {
-        return storm_rational_function_clone(a);
-    } else {
-        return storm_rational_function_clone(b);
-    }
+    return storm_rational_function_less_or_equal(a, b) ? storm_rational_function_clone(a) : storm_rational_function_clone(b);
 }
 
 storm_rational_function_ptr storm_rational_function_max(storm_rational_function_ptr a, storm_rational_function_ptr b) {
-#ifndef RATIONAL_FUNCTION_THREAD_SAFE
-    std::lock_guard<std::mutex> lock(rationalFunctionMutex);
-#endif
-    
-    if (storm_rational_function_less(a, b)) {
-        return storm_rational_function_clone(b);
-    } else {
-        return storm_rational_function_clone(a);
-    }
+    return storm_rational_function_less(a, b) ? storm_rational_function_clone(b) : storm_rational_function_clone(a);
 }
 
 int storm_rational_function_less(storm_rational_function_ptr a, storm_rational_function_ptr b) {